Logfire
Logfire is an observability platform by Pydantic that provides deep visibility into Python applications, with first-class support for AI/LLM workloads. It captures structured logs, traces, and metrics with automatic instrumentation for Pydantic AI agents, FastAPI endpoints, database queries, and HTTP calls. Logfire displays LLM calls with full prompt/response content, token usage, latency, and cost breakdowns. Built on OpenTelemetry, it integrates with the existing observability ecosystem while providing a specialized UI for AI application debugging and monitoring.
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Related Terms
OpenTelemetry
Frameworks & ToolsOpenTelemetry (OTel) is a vendor-neutral, open-source observability framework for generating, collecting, and exporting telemetry data — traces, metrics, and logs — from applications.
Pydantic AI
Frameworks & ToolsPydantic AI is a Python agent framework built by the creators of Pydantic, designed for building production-grade AI agent applications with type safety and validation at the core.
Pydantic
Frameworks & ToolsPydantic is the most widely used data validation library for Python, using type annotations to define data schemas and automatically validate, serialize, and transform data.
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